Tube DIY Asylum

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RE: What sized grid stopper should he try?

Posted by PakProtector on February 9, 2017 at 10:57:27:
Oscillation usually happens with grid current...and I once saw a 12BY7 LTP go singing away at a few tens of MHz...and the sonics were not very good at all...:) Now if it is a semi-regular oscillation, triggered by some of the program, getting harsh is quite likely, though you're not hearing the oscillation, it is the other side effects that present...:)

Douglas